Add CommonJS file glob to JavaScript lexer (rouge-ruby#1511)

This commit adds the `*.cljs` fille glob to the JavaScript lexer. Node.js treats files ending in the `.cjs` extension as CommonJS modules. Co-authored-by: Michael Camilleri <[email protected]>
NSHipster · May 21, 2020 · aa55875 · aa55875
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commit aa55875
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diff --git a/lib/rouge/lexers/javascript.rb b/lib/rouge/lexers/javascript.rb
@@ -15,7 +15,7 @@ class Javascript < RegexLexer
 
       tag 'javascript'
       aliases 'js'
-      filenames '*.js', '*.mjs'
+      filenames '*.cjs', '*.js', '*.mjs'
       mimetypes 'application/javascript', 'application/x-javascript',
                 'text/javascript', 'text/x-javascript'
 

diff --git a/spec/lexers/javascript_spec.rb b/spec/lexers/javascript_spec.rb
@@ -17,7 +17,9 @@
     include Support::Guessing
 
     it 'guesses by filename' do
+      assert_guess :filename => 'foo.cjs'
       assert_guess :filename => 'foo.js'
+      assert_guess :filename => 'foo.mjs'
     end
 
     it 'guesses by mimetype' do